Search a number
-
+
38819269 is a prime number
BaseRepresentation
bin1001010000010…
…1010111000101
32201001020000201
42110011113011
534414204034
63504010501
7650646466
oct224052705
981036021
1038819269
111aa04545
1211000a31
1380722a8
145226d6d
15361c014
hex25055c5

38819269 has 2 divisors, whose sum is σ = 38819270. Its totient is φ = 38819268.

The previous prime is 38819233. The next prime is 38819281. The reversal of 38819269 is 96291883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38750625 + 68644 = 6225^2 + 262^2 .

It is a cyclic number.

It is not a de Polignac number, because 38819269 - 217 = 38688197 is a prime.

It is a super-2 number, since 2×388192692 = 3013871291388722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38819969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19409634 + 19409635.

It is an arithmetic number, because the mean of its divisors is an integer number (19409635).

Almost surely, 238819269 is an apocalyptic number.

It is an amenable number.

38819269 is a deficient number, since it is larger than the sum of its proper divisors (1).

38819269 is an equidigital number, since it uses as much as digits as its factorization.

38819269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 46.

The square root of 38819269 is about 6230.5111347304. The cubic root of 38819269 is about 338.5964894056.

The spelling of 38819269 in words is "thirty-eight million, eight hundred nineteen thousand, two hundred sixty-nine".